[
https://issues.apache.org/jira/browse/SSHD-938?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Anudeep updated SSHD-938:
-------------------------
Description:
SSH connections are being closed with invalid packet length and TCP connection
goes into CLOSE_WAIT state and once CLOSE_WAIT state count crosses 4 no more
SSH connection is being allowed.
with SSHD-core-0.13.0
Below is the error
2019-08-22 09:53:29,106 INFO [org.apache.sshd.server.session.ServerSession]
(sshd-SshServer[6162dce4]-nio2-thread-2) Error decoding packet (invalid length)
a5 5f 74 5f a6 6f ea 41 02 c0 0a 54 83 22 e4 77 53 7d 0d b9 25 de 36 1d 07 cb
cd 43 66 95 51 b2 72 54 d5 4e 2d 0a d5 17 f4 5e 81 4d 6a b8 ab f7 00 bf 4d 40
f5 56 b7 61 9b 8a be fe 54 d4 89 a2 c5 07 3c de 25 95 44 18 4f 90 dc aa 5b de
40 85 71 12 cc f6 c0 34 8d 0e 75 95 a5 5b 8d f6 b9 f6 94 04 d8 b5 25 5c d5 58
06 d1 82 68 13 2f 4c a0 ee 78 6b 20 97 52 2d 93 4c 88 bc 17 53 ca eb 34 23 c1
c6 1e 5a f9 31 e7 52 f9 ef 88 03 de e8 af ba 11 5e 97 50 1e c2 26 ba 80 34 55
3f 38 49 0c a9 80 8c a3 fe 6f b6 b6 5d 45 41 e9 e0 e6 d5 15 d6 44 f8
c42019-08-22 09:53:29,106 INFO [org.apache.sshd.server.session.ServerSession]
(sshd-SshServer[6162dce4]-nio2-thread-2) Error decoding packet (invalid length)
a5 5f 74 5f a6 6f ea 41 02 c0 0a 54 83 22 e4 77 53 7d 0d b9 25 de 36 1d 07 cb
cd 43 66 95 51 b2 72 54 d5 4e 2d 0a d5 17 f4 5e 81 4d 6a b8 ab f7 00 bf 4d 40
f5 56 b7 61 9b 8a be fe 54 d4 89 a2 c5 07 3c de 25 95 44 18 4f 90 dc aa 5b de
40 85 71 12 cc f6 c0 34 8d 0e 75 95 a5 5b 8d f6 b9 f6 94 04 d8 b5 25 5c d5 58
06 d1 82 68 13 2f 4c a0 ee 78 6b 20 97 52 2d 93 4c 88 bc 17 53 ca eb 34 23 c1
c6 1e 5a f9 31 e7 52 f9 ef 88 03 de e8 af ba 11 5e 97 50 1e c2 26 ba 80 34 55
3f 38 49 0c a9 80 8c a3 fe 6f b6 b6 5d 45 41 e9 e0 e6 d5 15 d6 44 f8
c42019-08-22 09:53:29,106 DEBUG [org.apache.sshd.common.io.nio2.Nio2Session]
(sshd-SshServer[6162dce4]-nio2-thread-2) Caught exception, now calling
handler2019-08-22 09:53:29,106 WARN
[org.apache.sshd.server.session.ServerSession]
(sshd-SshServer[6162dce4]-nio2-thread-2) Exception caught:
org.apache.sshd.common.SshException: Invalid packet length: -16976455 at
org.apache.sshd.common.session.AbstractSession.decode(AbstractSession.java:677)
[sshd-core-0.13.0.jar:0.13.0] at
org.apache.sshd.common.session.AbstractSession.messageReceived(AbstractSession.java:283)
[sshd-core-0.13.0.jar:0.13.0] at
org.apache.sshd.common.AbstractSessionIoHandler.messageReceived(AbstractSessionIoHandler.java:54)
[sshd-core-0.13.0.jar:0.13.0] at
org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:184)
[sshd-core-0.13.0.jar:0.13.0] at
org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:170)
[sshd-core-0.13.0.jar:0.13.0] at
org.apache.sshd.common.io.nio2.Nio2CompletionHandler$1.run(Nio2CompletionHandler.java:32)
[sshd-core-0.13.0.jar:0.13.0] at
java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.8.0_172]
at
org.apache.sshd.common.io.nio2.Nio2CompletionHandler.completed(Nio2CompletionHandler.java:30)
[sshd-core-0.13.0.jar:0.13.0] at
sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126) [rt.jar:1.8.0_172] at
sun.nio.ch.Invoker$2.run(Invoker.java:218) [rt.jar:1.8.0_172] at
sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)
[rt.jar:1.8.0_172] at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[rt.jar:1.8.0_172]
was:
SSH connections are being closed with invalid packet length and TCP connection
goes into CLOSE_WAIT state and once CLOSE_WAIT state count crosses 4 no more
SSH connection is being allowed.
with SSHD-core-1.13.0
Below is the error
2019-08-22 09:53:29,106 INFO [org.apache.sshd.server.session.ServerSession]
(sshd-SshServer[6162dce4]-nio2-thread-2) Error decoding packet (invalid length)
a5 5f 74 5f a6 6f ea 41 02 c0 0a 54 83 22 e4 77 53 7d 0d b9 25 de 36 1d 07 cb
cd 43 66 95 51 b2 72 54 d5 4e 2d 0a d5 17 f4 5e 81 4d 6a b8 ab f7 00 bf 4d 40
f5 56 b7 61 9b 8a be fe 54 d4 89 a2 c5 07 3c de 25 95 44 18 4f 90 dc aa 5b de
40 85 71 12 cc f6 c0 34 8d 0e 75 95 a5 5b 8d f6 b9 f6 94 04 d8 b5 25 5c d5 58
06 d1 82 68 13 2f 4c a0 ee 78 6b 20 97 52 2d 93 4c 88 bc 17 53 ca eb 34 23 c1
c6 1e 5a f9 31 e7 52 f9 ef 88 03 de e8 af ba 11 5e 97 50 1e c2 26 ba 80 34 55
3f 38 49 0c a9 80 8c a3 fe 6f b6 b6 5d 45 41 e9 e0 e6 d5 15 d6 44 f8
c42019-08-22 09:53:29,106 INFO [org.apache.sshd.server.session.ServerSession]
(sshd-SshServer[6162dce4]-nio2-thread-2) Error decoding packet (invalid length)
a5 5f 74 5f a6 6f ea 41 02 c0 0a 54 83 22 e4 77 53 7d 0d b9 25 de 36 1d 07 cb
cd 43 66 95 51 b2 72 54 d5 4e 2d 0a d5 17 f4 5e 81 4d 6a b8 ab f7 00 bf 4d 40
f5 56 b7 61 9b 8a be fe 54 d4 89 a2 c5 07 3c de 25 95 44 18 4f 90 dc aa 5b de
40 85 71 12 cc f6 c0 34 8d 0e 75 95 a5 5b 8d f6 b9 f6 94 04 d8 b5 25 5c d5 58
06 d1 82 68 13 2f 4c a0 ee 78 6b 20 97 52 2d 93 4c 88 bc 17 53 ca eb 34 23 c1
c6 1e 5a f9 31 e7 52 f9 ef 88 03 de e8 af ba 11 5e 97 50 1e c2 26 ba 80 34 55
3f 38 49 0c a9 80 8c a3 fe 6f b6 b6 5d 45 41 e9 e0 e6 d5 15 d6 44 f8
c42019-08-22 09:53:29,106 DEBUG [org.apache.sshd.common.io.nio2.Nio2Session]
(sshd-SshServer[6162dce4]-nio2-thread-2) Caught exception, now calling
handler2019-08-22 09:53:29,106 WARN
[org.apache.sshd.server.session.ServerSession]
(sshd-SshServer[6162dce4]-nio2-thread-2) Exception caught:
org.apache.sshd.common.SshException: Invalid packet length: -16976455 at
org.apache.sshd.common.session.AbstractSession.decode(AbstractSession.java:677)
[sshd-core-0.13.0.jar:0.13.0] at
org.apache.sshd.common.session.AbstractSession.messageReceived(AbstractSession.java:283)
[sshd-core-0.13.0.jar:0.13.0] at
org.apache.sshd.common.AbstractSessionIoHandler.messageReceived(AbstractSessionIoHandler.java:54)
[sshd-core-0.13.0.jar:0.13.0] at
org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:184)
[sshd-core-0.13.0.jar:0.13.0] at
org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:170)
[sshd-core-0.13.0.jar:0.13.0] at
org.apache.sshd.common.io.nio2.Nio2CompletionHandler$1.run(Nio2CompletionHandler.java:32)
[sshd-core-0.13.0.jar:0.13.0] at
java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.8.0_172]
at
org.apache.sshd.common.io.nio2.Nio2CompletionHandler.completed(Nio2CompletionHandler.java:30)
[sshd-core-0.13.0.jar:0.13.0] at
sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126) [rt.jar:1.8.0_172] at
sun.nio.ch.Invoker$2.run(Invoker.java:218) [rt.jar:1.8.0_172] at
sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)
[rt.jar:1.8.0_172] at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[rt.jar:1.8.0_172]
> SSH sessions being closed with invalid packet length
> ----------------------------------------------------
>
> Key: SSHD-938
> URL: https://issues.apache.org/jira/browse/SSHD-938
> Project: MINA SSHD
> Issue Type: Bug
> Reporter: Anudeep
> Priority: Blocker
> Attachments: server.7z
>
>
> SSH connections are being closed with invalid packet length and TCP
> connection goes into CLOSE_WAIT state and once CLOSE_WAIT state count crosses
> 4 no more SSH connection is being allowed.
> with SSHD-core-0.13.0
>
> Below is the error
> 2019-08-22 09:53:29,106 INFO [org.apache.sshd.server.session.ServerSession]
> (sshd-SshServer[6162dce4]-nio2-thread-2) Error decoding packet (invalid
> length) a5 5f 74 5f a6 6f ea 41 02 c0 0a 54 83 22 e4 77 53 7d 0d b9 25 de 36
> 1d 07 cb cd 43 66 95 51 b2 72 54 d5 4e 2d 0a d5 17 f4 5e 81 4d 6a b8 ab f7 00
> bf 4d 40 f5 56 b7 61 9b 8a be fe 54 d4 89 a2 c5 07 3c de 25 95 44 18 4f 90 dc
> aa 5b de 40 85 71 12 cc f6 c0 34 8d 0e 75 95 a5 5b 8d f6 b9 f6 94 04 d8 b5 25
> 5c d5 58 06 d1 82 68 13 2f 4c a0 ee 78 6b 20 97 52 2d 93 4c 88 bc 17 53 ca eb
> 34 23 c1 c6 1e 5a f9 31 e7 52 f9 ef 88 03 de e8 af ba 11 5e 97 50 1e c2 26 ba
> 80 34 55 3f 38 49 0c a9 80 8c a3 fe 6f b6 b6 5d 45 41 e9 e0 e6 d5 15 d6 44 f8
> c42019-08-22 09:53:29,106 INFO
> [org.apache.sshd.server.session.ServerSession]
> (sshd-SshServer[6162dce4]-nio2-thread-2) Error decoding packet (invalid
> length) a5 5f 74 5f a6 6f ea 41 02 c0 0a 54 83 22 e4 77 53 7d 0d b9 25 de 36
> 1d 07 cb cd 43 66 95 51 b2 72 54 d5 4e 2d 0a d5 17 f4 5e 81 4d 6a b8 ab f7 00
> bf 4d 40 f5 56 b7 61 9b 8a be fe 54 d4 89 a2 c5 07 3c de 25 95 44 18 4f 90 dc
> aa 5b de 40 85 71 12 cc f6 c0 34 8d 0e 75 95 a5 5b 8d f6 b9 f6 94 04 d8 b5 25
> 5c d5 58 06 d1 82 68 13 2f 4c a0 ee 78 6b 20 97 52 2d 93 4c 88 bc 17 53 ca eb
> 34 23 c1 c6 1e 5a f9 31 e7 52 f9 ef 88 03 de e8 af ba 11 5e 97 50 1e c2 26 ba
> 80 34 55 3f 38 49 0c a9 80 8c a3 fe 6f b6 b6 5d 45 41 e9 e0 e6 d5 15 d6 44 f8
> c42019-08-22 09:53:29,106 DEBUG [org.apache.sshd.common.io.nio2.Nio2Session]
> (sshd-SshServer[6162dce4]-nio2-thread-2) Caught exception, now calling
> handler2019-08-22 09:53:29,106 WARN
> [org.apache.sshd.server.session.ServerSession]
> (sshd-SshServer[6162dce4]-nio2-thread-2) Exception caught:
> org.apache.sshd.common.SshException: Invalid packet length: -16976455 at
> org.apache.sshd.common.session.AbstractSession.decode(AbstractSession.java:677)
> [sshd-core-0.13.0.jar:0.13.0] at
> org.apache.sshd.common.session.AbstractSession.messageReceived(AbstractSession.java:283)
> [sshd-core-0.13.0.jar:0.13.0] at
> org.apache.sshd.common.AbstractSessionIoHandler.messageReceived(AbstractSessionIoHandler.java:54)
> [sshd-core-0.13.0.jar:0.13.0] at
> org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:184)
> [sshd-core-0.13.0.jar:0.13.0] at
> org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:170)
> [sshd-core-0.13.0.jar:0.13.0] at
> org.apache.sshd.common.io.nio2.Nio2CompletionHandler$1.run(Nio2CompletionHandler.java:32)
> [sshd-core-0.13.0.jar:0.13.0] at
> java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.8.0_172]
> at
> org.apache.sshd.common.io.nio2.Nio2CompletionHandler.completed(Nio2CompletionHandler.java:30)
> [sshd-core-0.13.0.jar:0.13.0] at
> sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126) [rt.jar:1.8.0_172] at
> sun.nio.ch.Invoker$2.run(Invoker.java:218) [rt.jar:1.8.0_172] at
> sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)
> [rt.jar:1.8.0_172] at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> [rt.jar:1.8.0_172]
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